Bicycle-lock.



un. 7|u,57a. 'Patented oct. 7, |902.

J. a. HAHN.

BICYCLE LOCK.

(No Model.)

Illa

PATENT OFFICE.

JOB GIBBS HANN, OF GRAND RAPIDS, MICHIGAN.

BICYCLE-LOCK.

bPECIFCATION forming part of Letters Patent No. 710,576, dated October 7, 1902.

Application filed Octoberrl, 1901. Serial No. 78,751. (No model.)

To all whom it mm1/U concern.'

Beit known that I, JOB GIBBS HANN, a citi- Zen of the United States, residing at Grand tapids, in the county of Kent and State of ll'lichigan, have invented a new and useful -icycle-Loclnof which the following is a specification.

This invention is an improved construction of lock, the object being to provide an exceedingly cheap and simple lock which can be applied to the front forks of a bicycle for the purpose of looking the front Wheel whenever it is desired to prevent the removal of the wheel.

IVith this object in view the invention con-- sists in the peculiar construction of the various parts and in their-novel combination or arrangement, all of which will be fully described hereinafter, and pointed out in the claim.

In the drawings forming part of this speciiication, Figure l is a perspective view illustrating the practical application of my invention. Fig. 2 is a sectional elevation showingV the position of the parts when the lock is not in use. Fig. 3 is a similar view showing the position of the parts when the bar is locked. Fig. 4 is a detail perspective view illustrating the locking-bar as arranged when not in use. Fig. 5 is a detail section illustrating the swivel connection with the locking-bar. Fig. 6 is a section on the line G 5 of Fig. 2. Fig. 7 is a vertical section on the line 7 7 of Fig. 3. Fig. S is a view illustrating` the tumblers and bolt. Fig. 9 is' a view illustrating the spring-actuated slide and casing for the same.

In carrying out my invention I employ a locking-case A, which is provided with suit! able ears or cleats A', by means of which it is attached to one of the forks of the machine, the case being arranged upon one of the forks, the locking-bar B being attached to the opposite fork and is adapted to extend across the space between the forks, and therefore occupy aposition between the spokes, whereby the rotation of the wheel is prevented. Y The bar B has a head B', which is connected to the swivel B2, carried by the clip B3, the opposite end of the bar being bent, as shown at B, and notched, as at B5. A spring-clip B( is also attached to the fork below the clip B3 for the purpose of holding the locking-bar when not in use.

lVithin the case are arranged the tu mblers and locking-bolt, and referring particularly to Fig. 8, C represents one of the tumblers, D the other one, and E the locking-bolt. The tumblers are pivoted upon apost F and are normally projected forwardlyv by means of the springs C' and D', respectively, which engage notches C2 and D2, respectively. The bolt has a post or lock E', which is adapted to engage one of the series of notches C3 and D3 of the tumbler-s, and this bolt also has a locking member E2, which is adapted to engage the notched end of the locking-bar B5, a spring E3 normally forcing the bolt in a forward direction.

G indicates a casing arranged within the lock-oase and communicating with the opening G', through which the end B4 of the locking-bar is inserted, and sliding in the casing G is an nverted-U-shaped plate H, a spring I being arranged within the casing and sliding plate for the purpose of normally projecting the said plate upwardly for the purpose of closing the opening G'. The casing G is out away at one side, so that when the end of the locking-bar is pushed into the oase and the sliding plate forced down the locking member E2 of the bolt can spring into engagement with the notched end of the lockingbar.

C4 and D1 indicate the respective portions of the tumblers which are adapted to be engaged by the key for the purpose of throwing the tumblers out of engagement with the looking-bolt, and the lkey then contacts with the member E4 and Willserve to move the bolt rearwardly, releasing the locking-bolt, and thespring-actuated sliding plate will immediately project the same out from the case. The locking of the bar is ofcourse accomplished without the aid of the key, as itis only necessary to push the notched end of the bar into the opening G' and the springactuated bolts and tumblers Will serve to securely lock the bar in its position.

Having thus fully described my invention, what I claim as new, and desire to secure 'by Letters Patent, is*

The combination with a locking-case, of the tulnblers C and D pivoted within the case and ICO having springs connected thereto, a loekingl ing-case having an opening communicating bolt arranged Within the ease and having a with the oase and a locking-bar having a xo locking member, a post or lug adapted to ennotched angular end, substantially as and for gage the tumblers, and a member adapted the purpose described.

5 for engagement with the bit of the key, a eas- JOB GIBBS HANN.

ing' open at one side, and an inVerted-U- Vitnesses: shaped plate sliding in the easing, a spring THOMAS XV. DALY,

contained within the oase and plate, the lock- SYDNEY STEELE. 

